Short twist drill bits with cylindrical shank ECO powerful standard drill high concentricity high breakage resistance temperature-resistant cutting edge up to approx. 400..C Good chip removal for normal drilling work in generally common materials, use: for steel and cast steel alloyed and unalloyed, grey cast iron, malleable iron, sintered iron, sphaero cast, graphite, bronze, brass tough, aluminium short chipping packaging: loose in tubes of 10 pieces up to ..; 10; 5 pieces each from..; 10.2